Ron... I do think that women and men should be treated equally in all respects. I stated that clearly.
However, human men and women are extremely different, by biological and cultural means. I think you're downplaying it by saying there are only "minor" differences.
If a black person and a white person were raised in the same environment, under normal and similar circumstances I'm willing to believe they'd turn out pretty much the same. The differences would be cultural, perhaps... the black person might act slightly differently based on media portrayals of black culture.
There is a huge difference between men and women, compared to the difference between races. Go into an elementary school, for example, and I'm willing to bet the cliques are more based on gender than they are on race, correct? It's because we do have different biological and cultural values, Ron.
Have you ever heard of estrogen and testosterone, Ron? It alters more than just our sexual drives, you know. And the cultural differences between men and women are present in pretty much all world cultures.
The reason for the global magnitude of cultural difference between men and women is obviously that men and women coexist in all cultures worldwide, whereas people of different races don't necessarily coexist in all places. Since the beginning of the species, men and women have had different roles. It even exists in the animal kingdom, if you want to take your example of a turtle.
Monitor their behavior, Ron. It doesn't take a rocket scientist to figure out that the roles of the male and the female are much different, perhaps not visually (aren't visual differences what we're trying to devalue, anyways?), but definitely by behavior and role.
Women and men are different, Ron. Far more different than blacks and whites are.
They deserve to be treated equally, sure. But there is still reasonable cause for the belief that one gender is superior to the other.
Because they are different. Whether one is better than the other depends on an individual's values.